Using a PC to copy software or data from a server, it

Select the number from among the given options that can replace the question mark (?) in the following series.

24, 35, 51, 73, 102, ?

8      24        12       ?      18         54

18, 25, 33, 42, 52, 63, ?

3,     2,     3,    8,    31,    ?

80, 255, 624, ?, 2400, 4095

24,  12,  18, ?,  157.5,  708.75

98       219       75       244       ?       273

102, 246, 442, 698, 1022, ?

70       191       47       216       ?       245

There are three series given below which are following with the same pattern.

Series I: 21, 44, 135, 544, 2725

Series II: 14, B, C, D, E